Now showing items 1-3 of 3

  • Micromechanical modelling of fatigue crack nucleation in stents 

    Sweeney, Caoimhe; McHugh, Peter; Leen, Sean B. (Bioengineering In Ireland Conference 2012, 2012)
    A finite element based micro-mechanical methodology for cyclic plasticity and fatigue crack initiation in cardiovascular stents is presented. The methodology is based on the combined use of a (global) three-dimensional ...
  • Micromechanics of fatigue with application to stents 

    Sweeney, Caoimhe (2014-09-30)
    This thesis describes the development of a computational framework, based on experimental characterisation and validation, for the microstructure-sensitive modelling of fatigue crack initiation, with a focus placed on its ...
  • Strain-gradient modelling of grain size effects on fatigue of CoCr stents. 

    Sweeney, Caoimhe; O'Brien, Barry; McHugh, Peter; McHugh, Peter; Murphy, Paul V. (Elsevier ScienceDirect, 2014-07-30)
    A strain-gradient crystal plasticity framework based on physical dislocation mechanisms is developed for simulation of the experimentally observed grain size effect on the low cycle fatigue of a CoCr alloy. Finite-element ...